Lens machinery



April 15 1924. I 1,490,160

G. S. DEY

LENS MACHINERY Filed Oct. 28. 1919 2 Sheets-Sheet 2 INVENTOR.

GILBERT S. DEY.

ATTORNEYS.

Patented Apr. 15, 1924.

UNITED STATES PATENT OFFICE.

GILBERT S. DEY, F SOUTHTBRIDGE, MASSACHUSETTS, ASSIG-NOB TO AMERICAN O1- TICAL COMPANY, OF SOUTHBRIDGE, MASSACHUSETTS, A VOLUNTARY ASSOCIA- TION' OF MASSACHUSETTS.

LENS MACHINERY.

Application filed October 28, 1919. Serial No. 334,022.

T 0 all whom it may concern.

Be it known that I, GILBERT S. DEY, a citizen of the United States, residing at Southbridge, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Lens Machinery, of which the following is a specification.

This invention relates to improvements in lens machinery and has particular reference to an improved device applicable for attachment to or for use in connection with various present existing types of machines for the production of optical lenses.

The leading object of the present invention is the provision of a novel and improved construction of attachment which can be readily applied both to lens machines and to other forms of machines equipped with a suitable spindle for opposition'to the attachment and which will facilitate the use of such machines so equipped for the automatic production of various forms of optical lenses.

A further object of the present invention is the provision of a novel and improved attachment which may be used to adapt an ordinary spindle for generative curve grinding or polishing if desired.

A further object of the present invention is the provision of a novel and improved attachment which may be readily applied to or removed from existing machinery and which will thus adapt said machinery, whether of regular lens grinding or other types, for the satisfactory automatic production of lenses.

Other objects and advantages of my improved construction should be readily apparent by reference to the following specification taken in connection with the accompanying drawings, and it may be understood that I may make any modifications in the specific details of construction shown and described within the scope of the appended claims without departing from or exceeding the spirit of my invention. 7

Figure I is a front View of my improved device. 7

Figure II is a side view thereof.

Figure III is a vertical sectional view, and

Figure IV is a horizontal sectional view on the line IVIV of Figure 2.

In the drawings, the numeral 1 designates a supporting column or bracket to be held by a suitable support such as the clamp 2,

this bracket being preferably round in form to permit of rotation thereof within the clamp 2 to adjust the table 3 carried thereby to any desired position. Slidably mounted in the guideway 4 of the table 3 is the base portion 5 of my device having the upstanding arms 6 in which are engaged the trunnions 7 of the yoke-like carriage 8 which is provided with the bearings 9 for the shaft 10.

Said shaft is provided with the pulley 11 by which it may be rotated, and has preferably a tapering upper end as at 12 to receive the lens tool or block 13 which will thus receive rotative movement from the spindle 10.

Suitable adjusting screws 14 serve to control the position of the trunnion arms 6 with respect to the bed plate or table 3, their action if desired being supplemented by the clamping or locking screws 15 for securing the base 5 and arms in desired transverse or horizontally adjusted position. To aid additionally any exact desired positioning of the spindle 10, which in the present instance has been illustrated as having the lens 16 mounted upon the member 13, I may make use of the opposed adjustment screws 17 carried by the bracket 18 which is pivoted as at 19 to one of the arms 6 so that it may swing to accommomate itself to the angle at which the yoke 8 is disposed. Loosening of one of the screws 17 and tightening of the opposite screw serve to swing the carriage or yoke 8 on its tunnnion 7 in the direction of the loosened screw, while tightening of both screws serve to lock the yoke 8 rigid with the supporting arms 7 to secure the spindle 10 at any desired angle with respect to the remaining parts.

It will thus be seen that in my construction I am able to dispose the rotatable spindle at any desired angle as respects its main support, to shift laterally the said support as desired along the guideway 4 and to secure the parts in said adjusted position, that I can if desired rotatably adjust the device as an entirety about the supporting column or bracket 1, and that by means of the combined action of these several adjustable elements I can dispose the operative surface, as for instance the upper face of the glass blank 16 shown in the drawings, in any desired relation to the member intended to operate thereon which may be either independent of or carried by the same general support as the clamp 2.

It will be understood that by means of these several adjustments the axis of rotation of the lens tool 13 may be varied as desired with respect to the support and may be rigidly held in any desired adjusted position, thus adapting the machine for either generative grinding in connection with a rigid tool and spindle or lap grinding or polishing with loosely held tools, either driven or drifting, and in any event the member carried by the spindle 10 will be in proper position for most satisfactory and rapid operation.

I claim:

1. A device of the character described, including a support, a slide horizontally adjustable on the support, said slide having spaced uprights projecting thereabove and a U-shaped frame hung between the uprights, trunnions connecting the uprights and frame to permit of angular adjustment of the frame, said frame having a cross piece, a spindle journaled in the frame and in the cross piece, means engaging the depending portion of the frame for securing the same in desired angularly adjusted position, said means including a yoke pivoted to one of the uprights and having its termini spanning the depending frame, and adjustable contacts carried by said termini for engagement with the frame.

2. In a device of the character described, the combination with a supporting arm of a pair of yoke members pivoted thereto about different centers, one of said yoke members bearing a spindle and the other of said yoke members bearing a pair of opposed threaded clamp members for engagement with the first yoke, whereby the pivotal movement of the two yokes will allow them to relatively adjust themselves to each other and adjustment of the threaded clamp members will swing the spindle yoke laterally on its pivot as respects the pivot of the second yoke.

8. In mechanism of the character described, the combination with a support and a frame carrying a spindle and pivoted to the support, of a locking device for the frame comprising a U-member intermediately pivoted to the support and having its ends extending into the path of pivotal movement of the frame, and adjustable clamp members carried by said ends for variable engagement with opposite sides of the frame to variably connect the frame and support in desired angularly adjusted relation, substantially as illustrated.

4. A machine as set forth, including opposed supports, supporting means therefor, a frame, including a spindle mounted for oscillatory movement between the opposed supports, a device mounted on one of said opposed supports and provided with means cooperating with and upon opposite sides of the spindle carrying frame, whereby it may be inclined to one side or the other of the opposed supports, the construction and arrangement of the mounting of said device being such as will permit the device to accommodate itself with respect to the spindle supporting frame.

In testimony whereof I have affixed my signature, in presence of two witnesses.

GILBERT S. DEY.

Witnesses ALICE G. HAsKELL, ESTHER M. LAFLER. 

